Dyeing spindle



W. GEIDNER DYEING SPINDLE July 2, 1935.

Filed Dec. 10, 1931 venfor;

Patented July 2, 1935 PATENT. OFFICE DYEING SPINDLE Wilhelm Geidner, Kempten, Germany Application December 10, 1931, Serial No. 580,188 In Germany March 16, 1931 6 Claims.

My invention concerns improvements on yarnholders with caps, as they are applied to yarn bobbins such as cross-wound bobbins, so-called sun or fiyer bobbins for a reciprocating treatment of the yarn with liquids or gases for dyeing,

bleaching, wetting or aerating purposes.

Ordinarily about 160 yarnholders of the usual type are screwed and sometimes only pushed at one end into openings in horizontal plates or cylinders, the latter arrangement called porcupines. The yarn bobbins having a tube-like center piece are put on these holders and held in position by caps which are slipped over or screwed on to the free ends of the holder.

The caps are provided with conuses over which, or with spigots into which the sockets of the yarn bobbins are pushed. This prevents leakage of the liquid or gas. The liquids or gases are sup plied to or sucked through the yarn holders from one end; the yarn holders consist of tubes provided with openings or, of profile bars. The caps are provided with springs, which by their clamping efiect hold the caps upon the free ends of the yarnholders.

But, due to the lack of space, only very feeble springs can be used, since they must be short, and only a diameter not surpassing 8 to 9 mm. is in most of the cases available. Moreover with yarnholders with perforated tubes there will be the necessity of also perforating the clamping springs themselves, in order to allow the free circulation of the liquids or gases which by their chemical action cause a weakening of the springs. Besides the clamping springs also will cover the hollows 5 of the holders when using yarnholders of punched pipes and also of the sockets of the yarn spools. Consequently these parts of the yarn bobbins which are close to the springs will be poorly dyed or bleached. Due to the chemical influences, the clamping springs will most rapidly be corroded and become slack after a short use and will no longer hold the caps tightly.

Holders provided with my invention perfectly eliminate these defects. Besides, the device is most simple and the manufacture of the holders and their closures is inexpensive. Moreover an easy and quick handling as well as a reliable and lasting fit of the caps on the holders is assured. By making use of this yarnholder, especially by its closing device, homogeneous and correct dyeing and bleaclm'ng of the bobbins in all their parts is assured, because all parts obstructing the interior spaces and the flow of the liquid or gases are avoided.

The object of my invention consists in the provision of a bobbin holder which has itself a pro vision adapted to bring about a resilient effect eitherby suitably shaping the end of the yarnholder or by providing special parts bringing about a spring-like action on the end of the bob- 5 binholder, instead of providing springs on the closing caps for securing the'caps by a clamping effect. According to the object of my invention the yarnholders are provided either with slots and parts bulged thereabove or slots producing spring-like tongues. The spring-like tongues can also be independent and mounted in the holders and can be made exchangeable.

A device embodying my present invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a profile-bar bobbin holder with slots and bulgings, as well as a socket carrying the yarn-bobbin with'a closing cap in a vertical section. Fig. 2 is across section on the line A -A of Fig. 1 showing a profile-bar with three ledges and the socket withoutyarn-bobbin. Fig.

I 3 is a profile -bar bobbin-holder with one slot at the top of one ledge. Fig. 4 is a bobbin holder with a cylindrical top and cross slot.

The bobbin holder with cap consists of the holder proper a which in the embodiment of my invention shown on the drawing is shaped as a profile-bar and is only represented partly; the socket b carrying the yarn-bobbin c is slipped over the holder. The socket b with its yarn bobbin 0 is held by a cap (2 pushed on the free end of the bobbin holder a. 'The cap is connected with the socket b by a conus e.

According to my invention the cap d is kept on the bobbin holder at by the spring provisions at the free end of the latter or a spring-like part being disposed at its free end.

In the bobbin holder shown in Fig. 1 the spring action of the free end of the holder is obtained by means of slots 1 at the roots of the ledges m and part g bulged above the slots.

Fig. 3 shows an embodiment of my invention having a profile-bar or holder (1, said profile-bar or at least one ledge of it being provided with a longitudinal and sideward slot h.

Fig. 4 shows an embodiment of my invention on a bobbin holder a provided with a cylindrical free end. In this case, e. g. there is provided only one cross notch 10 at the free end. By this Y the holder is split into two tongues Z slightly bent outwards and thus having a resilient effect.

Instead of one slot there may also be provided several resilient tongues i or Z. The said spring tongues i, or Z may also be applied as individual parts 'on the holders a, and may even be exchangeable, too.

Therefore my invention may not only be used on profile-bars, as shown in the drawing, but also on other rods of any cross section e. g. on perforated tubes serving as bobbin holders.

By the application of my invention, a simple and quick manipulation of the closing caps will be obtained, and the caps will reliably stay in place. The efiiciency of the dyeing or bleaching process is very' much increased by it, because all the parts which may obstruct the circulation of liquids or gases are avoided and a most equal dyeing or bleaching of the whole yarn-bobbin will be assured.

Having thus described my invention, what I 'claim is: V

1. In a dyeing spindle for yarn spools and the like, a hollow center piece within said spools, a bobbin holder withinrsaid center piece, said bobbin holder having a resilient expanding free end and a cap adapted to be pushed over said expandingfree end and to be held in position by said resilient expanding free end.

2. In a dyeing spindle for yarn spools and the like, a hollow centerpiece within saidspools, a bobbin holder within said center piece, said bobbin holder'having a longitudinal axis, a'free end and a slot on said free end, said slot rendering said free end resilient against compression in a direction perpendicular to the longitudinal axis of said bobbin holder and a cap adapted to be pushed over said free end thereby compressing said free end and thereby being held onto said freeend.

'3. In a dyeing spindle for yarn spools and the ,like, a hollow center piece within said spools,

a bobbin holder within said center piece, said bobbin holder having a free end and longitudinal slots'on said free end, said slots rendering said free endresiliently expanding against compression and a cap. adapted to be pushed over said free end therebycompressing said free end a d h re y ip ld a sa d fl e e d.-

compression perpendicular to the main axis of 7 said bar and at said free end a cap provided with a cavity having internal surfaces adapted to co-operate with said resilient free end of said .profile bar, thereby, compressing said end and frictionally engaging said free end and holding said cap in position.

5. In a dyeing spindle for yarn spools and the like, a hollow center piece within: said spools, a

' bobbin holder within said center piece, said bobbin holder consisting of a profile bar having a plurality of ledges and a free end, a longitudinal slot in said ledges at said free end, said slot rendering said ledges resilient at said free end, and a cap provided with a cavity having internal surfaces adapted to be slipped over and cooperate with saidrresilient ledges at said free end of said profile bar, thereby compressing said end and frictionally engaging said free end and hold-: ing said cap in position. I y j 6. In a dyeing spindle for yarn spools and the like, a hollow centerpiece within said spools, a bobbin holder within said center piece, said bobbin holder consisting of a profile bar havinga plurality of ledges and a free end, roots on said ledges, and slots adjacent to said roots and adjacent to said free'end, said ledges being bulged over'saidslots, said slots and bulgings rendering said free end resilient against compressionin a direction perpendicular to the main axis of said profile bar and a cap radapted to be pushed-over said free end thereby compressing said free end and thereby being held onto said free end.

WILHEIM GEIDNER. 

